body {
    padding: 50px;
    padding-top: 0;
    font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
}

a {
  color: #00B7FF;
}

.entry{
    position: relative;
    margin-top: 30px;
    border: 4px solid green;
    border-radius: 10px;
    padding: 20px;
}
.entry p{
    margin-top: 3px;
    margin-bottom: 4px;
}

.entry .btn-close{
    opacity: 0;
    display: block;
    position: absolute;
    width: 1em;
    height: 1em;
    line-height: 1em;
    text-align: center;
    color: white;
    top: 10px;
    right: 10px;
    background-color: red;
    box-shadow: 1px 4px 8px rgba(255, 0, 0, 0.4);
    border-radius: 50%;
    transition: all ease .3s;
}

.entry:hover .btn-close{
    opacity: 1;
}